# US 10,372,165 B2 · Display device and control method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,372,165 B2 - Document ID: US10372165B2 - Status: Granted - Kind: B2 - Application number: 15/533,353 - Filed: 2014-12-23 - Published: 2017-11-30 - Granted: 2019-08-06 - Earliest claimed: 2014-12-23 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Doyoung Lee - Web page: https://patentgrep.com/patent/US10372165B2 ## CPC - G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable} - G02F 1/1333: Constructional arrangements; {Manufacturing methods}(G02F1/135, G02F1/136 take precedence) - G06F 1/1686: {the I/O peripheral being an integrated camera} - G06F 3/011: {Arrangements for interaction with the human body, e.g. for user immersion in virtual reality (blind teaching G09B21/00)} - G06F 3/0481: based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance - G06F 3/04886: by partitioning the display area of the touch-screen or the surface of the digitising tablet into independently controllable areas, e.g. virtual keyboards or menus - H04M 1/0268: {including a flexible display panel} - H04N 23/57: Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A display device and a control method are disclosed. The display device comprises: a flexible display unit capable of displaying an image in two directions; a camera unit, which is disposed in a first direction and receives as an input the image in the first direction; and a control unit, wherein the control unit can temporarily capture the image input in the first direction and display the temporarily captured image in the first direction on the flexible display unit in a second direction or a bent region of the flexible display unit when the region of the flexible display unit, which includes the camera unit, is bent in the second direction at an angle equal to or greater than a preset angle, so that the camera unit can receive as an input the image in the second direction, which is opposite the first direction. ## Claims ### Claim 1 A display device comprising: a flexible display unit configured to display images in two directions; a camera unit disposed in a first direction and configured to: when the flexible display unit is not bent, receive as an input an image in the first direction; and when an area of the flexible display unit, in which the camera unit is included, is bent in a second direction opposite to the first direction at a predetermined angle or more, receive as an input an image in the second direction; and a control unit configured to: temporarily capture the image received in the first direction; cause the flexible display unit to display the image temporarily captured in the first direction on a second direction side of the flexible display unit or the bent area of the flexible display unit in response to the bending of the area of the flexible display unit in the second direction; cause the image received in the second direction to rotate in a gravity direction of the display device; crop the rotated image based on a screen ratio of the flexible display unit with respect to the rotation direction of the image; and cause the flexible display unit to display the cropped image. ### Claim 2 (depends on 1) The display device of claim 1, wherein the control unit is configured to temporarily capture the image in the first direction at a predetermined period and delete the image temporarily captured in the first direction after elapse of a predetermined time. ### Claim 3 (depends on 1) The display device of claim 1, wherein when the image temporarily captured in the first direction is displayed on the bent area of the flexible display unit, the control unit is configured to display the image received in the second direction on the second direction side of the flexible display device. ### Claim 4 (depends on 1) The display device of claim 1, wherein when the image temporarily captured in the first direction is displayed on the second direction side of the flexible display unit, the control unit is configured to display the image received in the second direction on the bent area of the flexible display unit. ### Claim 5 (depends on 4) The display device of claim 4, wherein the control unit is configured to further display at least one photography image associated with the image temporarily captured in the first direction on the second direction side of the flexible display unit. ### Claim 6 (depends on 5) The display device of claim 5, wherein the photography image associated with the image temporarily captured in the first direction comprises at least one of an image including a same person, an image including a same background, and an image photographed within a predetermined time range. ### Claim 7 (depends on 1) The display device of claim 1, wherein when the bent area of the flexible display unit is unfolded, the control unit is configured to delete the image temporarily captured in the first direction. ### Claim 8 (depends on 7) The display device of claim 7, wherein the control unit is configured to control the flexible display unit to display a bending line of the bent area of the flexible display unit on the second direction side of the flexible display unit. ### Claim 9 (depends on 1) The display device of claim 1, wherein the control unit is configured to control the flexible display unit to display an area corresponding to a position of the camera unit on the second direction side of the flexible display unit. ### Claim 10 (depends on 1) The display device of claim 1, wherein the control unit is configured to display a menu related to photography on the bent area of the flexible display unit. ### Claim 11 (depends on 1) The display device of claim 1, wherein the control unit is configured to generate a photography button at a boundary of the bent area of the flexible display unit and the second direction side of the flexible display unit such that the photography button is included in both of the bent area of the flexible display unit and the second direction side of the flexible display unit. ### Claim 12 (depends on 11) The display device of claim 11, wherein when only a part of the photography button, which is included in the bent area of the flexible display unit, is selected, the control unit is configured to photograph an image displayed on the bent area of the flexible display unit. ### Claim 13 (depends on 11) The display device of claim 11, wherein when only a part of the photography button, which is included in the second direction side of the flexible display unit, is selected, the control unit is configured to photograph an image displayed on the second direction side of the flexible display unit. ### Claim 14 (depends on 11) The display device of claim 11, wherein when the entirety of the photography button included in the both of the bent area of the flexible display unit and the second direction side of the flexible display unit is selected, the control unit is configured to photograph images displayed on the bent area of the flexible display unit and the second direction side of the flexible display unit. ### Claim 15 (depends on 1) The display device of claim 1, wherein an upper side of the display device and an upper side of the camera unit are in parallel when the flexible display unit is not bent. ### Claim 16 (depends on 15) The display device of claim 15, wherein the upper side of the camera unit is inclined with respect to the upper side of the display device when the area of the flexible display unit is bent. ### Claim 17 A method for controlling a display device including a flexible display unit capable of displaying images in two directions, the method comprising: temporarily capturing an image in a first direction by receiving as an input the image through a camera unit disposed in the first direction when the flexible display unit is not bent; sensing bending of an area of the flexible display unit, in which the camera unit is included, in a second direction opposite to the first direction at a predetermined angle or more such that the camera unit receives as an input an image in the second direction; displaying the image temporarily captured in the first direction on a second direction side of the flexible display unit or the bent area of the flexible display unit in response to the bending of the area of the flexible display unit in the second direction; rotating the image received in the second direction in a gravity direction of the display device; cropping the rotated image based on a screen ratio of the flexible display unit with respect to the rotation direction of the image; and displaying the cropped image. ### Claim 18 (depends on 17) The method of claim 17, wherein displaying the image temporarily captured in the first direction comprises displaying the image temporarily captured in the first direction on the second direction side of the flexible display unit and wherein displaying the image received in the second direction comprises displaying the image received in the second direction on the bent area of the flexible display unit. ### Claim 19 (depends on 18) The method of claim 18, further comprising, when the bent area of the flexible display unit is unfolded, displaying a bending line of the bent area of the flexible display unit on the second direction side of the flexible display unit. ### Claim 20 (depends on 17) The method of claim 17, further comprising generating a photography button at a boundary of the bent area of the flexible display unit and the second direction side of the flexible display unit such that the photography button is included in both of the bent area of the flexible display unit and the second direction side of the flexible display unit.